11001109 has 4 divisors (see below), whose sum is σ = 12572704. Its totient is φ = 9429516.

The previous prime is 11001103. The next prime is 11001131. The reversal of 11001109 is 90110011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11001109 - 2⁹ = 11000597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785787 + ... + 785800.

It is an arithmetic number, because the mean of its divisors is an integer number (3143176).

Almost surely, 2^11001109 is an apocalyptic number.

It is an amenable number.

11001109 is a deficient number, since it is larger than the sum of its proper divisors (1571595).

11001109 is an equidigital number, since it uses as much as digits as its factorization.

11001109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571594.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 11001109 is about 3316.7919741823. The cubic root of 11001109 is about 222.4054827267.

It can be divided in two parts, 1100 and 1109, that added together give a square (2209 = 47²).

The spelling of 11001109 in words is "eleven million, one thousand, one hundred nine".